拍卖行英语专家请进,account number 和property number分别是什么意思?

A terra-cotta head was sent to Sotheby's on September 13, 1989, number 50 in the consignment note. It was taken in by Sotheby's with the property number 1002611 and was Lot 100 in its antiquities sale held on December 11, 1989, when it sold for $ 2200.

请问consignment note和 property number 都是什么意思？

谢谢！

相关了解……